Add 54/36 and 12/81
1st number: 1 18/36, 2nd number: 12/81
54/36 + 12/81 is 89/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 36 × 9 = 324,
54/36 = 54 × 9/36 × 9 = 486/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
12/81 = 12 × 4/81 × 4 = 48/324 - Add the two like fractions:
486/324 + 48/324 = 486 + 48/324 = 534/324 - 534/324 simplified gives 89/54
- So, 54/36 + 12/81 = 89/54
In mixed form: 135/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/36+24/81 54/72+12/81 54/36+36/81 54/36+60/81 54/36+84/81